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DuraVent 4"-to-5" Stepped Increaser

SKU W2-45I
Original price $198.33
Original price $198.33 - Original price $198.33
Original price $198.33
Current price $158.66
$158.66 - $158.66
Current price $158.66
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DuraVent 4"-to-5" Stepped Increaser

The DuraVent Stepped Increaser allows you to convert a 4” to 5” exhaust vent. Constructed with heavy-duty aluminum alloy and stainless steel components, you’ll enjoy superior durability and corrosion resistance. This increaser is the perfect choice for keeping your venting system safe and efficient.

Use to increase vent diameter when space constraints are an issue. Available in custom size combinations. Available in 316L Stainless Steel


  • Available Inner Diameter : "4" & "5"
  • Fuel Types Compatible With: Gas
  • UL Listed: Yes
  • Double Wall Construction

Typical Installation:(Refer this if required):-

Commercial Applications

Commercial projects may require custom parts and unique system designs. DuraVent offers complete project assistance:

  • Engineering Services: Personalized system design services offer comprehensive CAD submittal drawing and complete bills of materials.
  • Custom Parts: If your project requires innovative solutions, contact DuraVent for custom parts that meet your specific project needs.
  • FasNSeal W2: FasNSeal W2 is the ideal choice for commercial applications where there is a need for low clearances to combustibles.
  • Up to 16” Vent Diameters: Many commercial applications require large diameter systems due to the units size and output. Large diameters are available in single and double wall, featuring FasNSeal’s triple lipped directional gaskets and built-in locking band which provides a safe and convenient installation.

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